Advice and Scenarios Database



Spotted ray (Raja montagui) in Subarea 4 and divisions 3.a and 7.d (North Sea, Skagerrak, Kattegat, and eastern English Channel)
StockCode (Assessment Component)
rjm.27.3a47d
Assessment Year
2023
Stock Category
2
Purpose
Advice
Published
Stock Assessment Key
18340
Link to Advice Sheet
https://doi.org/10.17895/ices.advice.21856905.v1






Catch scenarios


Basis
Total catch***
Fishing mortality F2025/FMSY
Stock size B2026/BMSY
% B change*
% advice change**
2025 2025 2026 2026 2025
(t) (ratio) (ratio) (%) (%)
ICES Basis Advice
MSY approach (15th percentile of predicted catch distribution under F = FMSY) 1415 0.73 1.43 -5.2 -6.7
Other scenarios
FMSY 1796 1 1.3 -14 18
F=F2023 680 0.31 1.67 10.4 -55
F=0 0 0 1.86 23 -100
F = FMSY fractile 10 1336 0.68 1.46 -3.4 -12
F = FMSY fractile 20 1481 0.77 1.41 -6.7 -2.4
F = FMSY fractile 35 1646 0.89 1.35 -10.6 8.5




Symbol Footnotes
* Percentage change of B2026/BMSY relative to B2025/BMSY.
** Advice value for 2025 relative to the advice value for 2024 (1517 tonnes)
*** ICES cannot quantify how any increase in catches may impact discard rates for this stock.